Flaky SO2R

#108

I recently powered up my trusty old SO2R box. It lite up the TX1 red LED which is normal, but both Green LED's were on !?!

If I flipped the RX selection switch from 1 to 2, the Green LED's both went out, but I heard relays close in some of my gear as if PTT had been asserted.

I tried reloading Firmware. That worked fine but that did not help with the problem.

It appears that the TX and RX LED's are driven off the uP. Can I simply replace it and do a Firmware update using the Pgm Jumper?

All voltages look OK inside

-- 
73,
Mike, N1JEZ
"A closed mouth gathers no feet"
-- 
73,
Mike, N1JEZ
"A closed mouth gathers no feet"

#109

Hi Mike,

The microprocessor must be initialized with a programmer.? So you can't plug in a blank microprocessor and install the firmware.

Does the SO2R Box Utility communicate with the SO2R Box?? If so, try Reset.? This will set the EEPROM values to initial state, which is not always done when the firmware is reloaded.? You can also try flashing an older version of the firmware and if that works upgrade back to the newest version.

If all of these fails, I think Dennis, W1UE has some programmed microprocessors.

??? Paul, K1XM

Show quoted text

On Mon, Feb 17, 2025 at 3:06?PM Mike N1JEZ via <mikeseguinvt=[email protected]> wrote:

I recently powered up my trusty old SO2R box. It lite up the TX1 red LED
which is normal, but both Green LED's were on !?!

If I flipped the RX selection switch from 1 to 2, the Green LED's both
went out, but I heard relays close in some of my gear as if PTT had been
asserted.

I tried reloading Firmware. That worked fine but that did not help with
the problem.

It appears that the TX and RX LED's are driven off the uP. Can I simply
replace it and do a Firmware update using the Pgm Jumper?

All voltages look OK inside

--
73,
Mike, N1JEZ
"A closed mouth gathers no feet"
--
73,
Mike, N1JEZ
"A closed mouth gathers no feet"

#110

Hi Paul,

Reset did it! Tnx.

Show quoted text

On 2/17/2025 3:21 PM, Paul Young via groups.io wrote:
Hi Mike,
The microprocessor must be initialized with a programmer.? So you can't plug in a blank microprocessor and install the firmware.
Does the SO2R Box Utility communicate with the SO2R Box?? If so, try Reset.? This will set the EEPROM values to initial state, which is not always done when the firmware is reloaded.? You can also try flashing an older version of the firmware and if that works upgrade back to the newest version.
If all of these fails, I think Dennis, W1UE has some programmed microprocessors.
??? Paul, K1XM
On Mon, Feb 17, 2025 at 3:06?PM Mike N1JEZ via groups.io < groups.io> <mikeseguinvt@... <mailto:[email protected]>> wrote:
I recently powered up my trusty old SO2R box. It lite up the TX1 red
    LED
    which is normal, but both Green LED's were on !?!
If I flipped the RX selection switch from 1 to 2, the Green LED's both
    went out, but I heard relays close in some of my gear as if PTT had
    been
    asserted.
I tried reloading Firmware. That worked fine but that did not help with
    the problem.
It appears that the TX and RX LED's are driven off the uP. Can I simply
    replace it and do a Firmware update using the Pgm Jumper?
All voltages look OK inside
-- 
    73,
    Mike, N1JEZ
    "A closed mouth gathers no feet"
    -- 
    73,
    Mike, N1JEZ
    "A closed mouth gathers no feet"

-- 
73,
Mike, N1JEZ
"A closed mouth gathers no feet"

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Flaky SO2R